![]() Los algoritmos de inteligencia artificial de Darktrace pueden reconocer rápidamente este comportamiento anómalo, alertando a la organización afectada en tiempo real sobre estas "Conexiones internas inusuales", así como sobre posibles "Exploraciones de la red". Los dispositivos comprometidos intentarán moverse lateralmente en la red en busca de otros dispositivos que infectar. The initial fake Adobe Flash Player download from 1dnscontrolcom is immediately detected as a suspicious download: In fact, we alerted a number of our customers within seconds of the initial fake Flash Player download on their respective networks, and well before the extent of the campaign was publicly known. Darktrace instantly detects BadRabbitĭarktrace has strong detection capabilities for this campaign without the use of any signatures. All of the previously identified detection capabilities still hold true. As Darktrace’s AI does not rely on identifying individual exploits to detect breaches, this latest discovery does not affect Darktrace’s capability to identify BadRabbit infections. BadRabbit appears to be using the EternalRomance exploit that targets CVE-2017-0145, patched by Microsoft in March 2017, to propagate within the internal network over SMB. Update (October 30, 2017): As the investigation of BadRabbit capabilities continued over the weekend, new details about how BadRabbit spreads have been uncovered. This is likely used to further enhance its lateral movement capabilities using SMB. The malware appears to contain a stripped-down version of the Mimikatz tool which is used to gather credentials on Windows machines. onion website, which has to be accessed via Tor, to pay the ransom.īadRabbit can brute-force its way over SMB to other devices on the network using a hard-coded list of common credentials. ![]() The criminals demand a Bitcoin payment for decrypting the files. The ransomware then encrypts files on the compromised devices using a hard-coded list of file extensions using a RSA 2048 key. ![]() The malware creates a scheduled task for another file upon execution. No exploits are used to automatically execute the malware. Once downloaded, a user has to execute the fake Adobe Flash player with administrative credentials manually. The same approach is often applied to trick users into inadvisable actions, such as downloading malware when browsing TV streaming websites, or torrent websites. ![]() This technique of presenting users with fake updates, commonly Adobe Flash, containing ransomware, adware or other forms of malware, has gained traction in the last six months. It is unclear at this point if the websites were compromised, or if the advertisement networks were leveraged to display the fake Adobe Flash downloads. Various news and media websites predominantly but not exclusively in Russia and Ukraine served their visitors with pop-up alerts asking them to download Adobe Flash player software updates. The initial infection vector appears to be via drive-by downloads and social engineering using fake Adobe Flash player files. Since, the ransomware has spread to other countries across the world as well. The attack initially hit companies in Russia and Ukraine on October 24 th, 2017. Some of the functionality in BadRabbit and the modus operandi of how it infects the targets is similar to the NotPetya attack. The campaign is reminiscent of the WannaCry and NotPetya attacks seen earlier this year. BadRabbit is a self-propagating piece of malware that uses SMB to spread laterally. This blog post describes the currently circulating ransomware called BadRabbit and how Darktrace’s machine learning technology detects it.
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